Optical receiver sensitivity enhancement by single- and dual-band fiber optical parametric amplifier

被引：1
|
作者：
Kang, Jiqiang [1 ]
Marhic, M. E.
Li, Bowen [1 ]
Tan, Sisi [1 ]
Wang, Xie [1 ]
Wong, Kenneth K. Y. [1 ]
机构：
[1] Univ Hong Kong, Dept Elect & Elect Engn, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 22期
基金：
中国国家自然科学基金;
关键词：
NOISE-FIGURE LIMIT; PHOTON DETECTION; AVALANCHE PHOTODIODES; BALANCED DETECTOR; COHERENT RECEIVER; QUANTUM-NOISE; WDM SIGNALS; MU-M; PREAMPLIFIER; PUMP;
D O I：
10.1364/OE.25.027785
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A semi-classical model is proposed theoretically and demonstrated experimentally on the optical receiver sensitivity enhancement by single-band (signal or idler) and dual-band (signal and idler) fiber optical parametric amplifier (FOPA). The sensitivity enhancement by single-band is determined by the gain of FOPA and the transmission loss of signal and idler, and it can be further improved by up to 3-dB using amplified signal and phase-conjugated idler together at dual-band configuration. The theoretical results are experimentally verified in both fiber communication and biomedical imaging applications. This detection sensitivity enhancement scheme can be potentially applied in the scenarios where ultrafast broadband signal at low-power level is being handled. (C) 2017 Optical Society of America
引用
收藏
页码：27785 / 27794
页数：10
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